Tectonics Plates

Question 1

Thoery of techtonic plates

Answer 1

In 1912, a meterologist, Alfred Wegner proposed that once the continebts were all one large peice of land that fit together called pangea but drifted apart over time and he collected different evidences to the theory but was originally denied seeing as he could not name the mechanism whichcaused them to drift

Question 2

What are thetypes of plate boundaries

Answer 2

convergent, divergent, transform

Question 3

What are crustal plates

Answer 3

rigid sections of the earths crust

Question 4

Why do plates move

Answer 4

magma produces convection current which travels upwards towards the crust and causes the plate to move

Question 5

What landforms are made at the convergent plate margin

Answer 5

subduction zone, trench, volcanic islands, island arcs, underwater volcanoes, fold mountains

Question 6

what landforms are made at the diveregnt plate margin

Answer 6

seafloor spreading, , mid ocean ridge rift valleys

Question 7

What are the evidence for continental drift

Answer 7

jigsaw effect, similar plants and animals at continent borders, similar rock types and age at borders